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VINITA, Okla. – Two young boys are recovering in the hospital and a day care is under investigation after the children suffered severe sunburns.

Shaunna Oxford says “Happiness Is A Learning Center” day care workers in Vinita, Oklahoma left 7-year-old Connor and 5-year-old Trey outside with little or no sunscreen.

When she picked them up Friday, both started complaining of painful burns. Their condition worsened over the weekend, and Oxford took them to Hillcrest Medical Center where they were recommended to fly to Shriners Hospital in Galveston, Texas.

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The boys were admitted and are recovering from second- and third-degree burns, according to KFOR. Amanda Harvey posted photos of the giant, bronze-colored pustules on the boys’ shoulders and backs, with the caption, “My poor nephews left outside while they were at HAPPINESS DAYCARE IN VINITA! MOM AND BABIES ARE AT THE HOSPITAL NOW.”

The Department of Human Services is now investigating the day care — it’s not the first time the facility has been scrutinized by authorities.

In the last 10 months Happiness Is A Learning Center has been logged 19 times for violating state regulations, according to KFOR.

The day care declined to comment and has voluntarily closed its doors amid the investigation.